Home / 16,912.87-23,327.13-15,000.91

Finding the Fourth Proportional to 16,912.87, 23,327.13 and 15,000.91

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Solution

The fourth proportional to 16,912.87, 23,327.13 and 15,000.91 is: 20,690.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,912.87 : 23,327.13 = 15,000.91 : x
  2. Step 2: Convert to fraction form
    16,912.87/23,327.13 = 15,000.91/x
  3. Step 3: Cross multiply
    16,912.87x = 23,327.13 × 15,000.91
  4. Step 4: Simplify right side
    16,912.87x = 349,928,177.69
  5. Step 5: Solve for x
    x = 349,928,177.69/16,912.87
  6. Step 6: Final answer
    x = 20,690.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.